1/4-20X1 Phillips Flat Thread Cutting Screw Type F Fully Threaded Zinc Bake, Pkg of 3000

5/16-18X1 1/4 Six Lobe Pan Thread Cutting Screw Type 23 Fully Threaded Zinc Bake. Thread-Cutting Type-23 screws provide excellent chip clearance with minimum tightening torques. Steel: Used in cast iron and zinc, aluminum die castings, and plastics. Stainless: Material into which the screw is to cut threads should have a lower hardness. Pan head screws are a common style that can substituted in most applications for round, truss or binding heads.

6X3/8 Phillips Pan Self Tapping Screw Type A B Fully Threaded Zinc Bake. Type AB thread for use in the thinner sheet metal like used in appliances. Pan head screws are a common style that can substituted in most applications for round, truss or binding heads.

12X1/2 Phillips Pan Self Tapping Screw Type A Fully Threaded Zinc Bake. Type A thread for self starting in thin (.015 - .050 inch thick) metal or resin-filled plywood. Pan head screws are a common style that can substituted in most applications for round, truss or binding heads.

6X1/2 Phillips Flat Undercut Full Thread Self Drilling Screw Zinc Bake. Self drilling screws have point to cut through material and eleiminate the need to drill a pilot hole. Flat undercut heads are used when a flat head is desired on shorter length screws.

4X3/8 #3 HD Phillips Truss High Low Screw Fully Threaded Zinc Bake. High-Low thread for use in plastic, nylon, wood or other low-density materials. Thread design reduces driving torques, enhances resistance to thread stripping, improves pullout strength and lessens the risk of cracking the work piece. Truss head screws are weaker than pan or round heads but preferred in applications where minimal clearance exists above the head. Modified truss heads offer low clearance and an extra large bearing surface. Commonly used to attach metal lathe to metal studs.